2021 Mercedes-Benz GLB 200 AMG Line Auto 1.3L Petrol · LP21 XVN

The latest MOT test for this Mercedes-Benz GLB was passed on 19 February 2026, but the inspection history reveals a deteriorating maintenance trend. The vehicle recently underwent a dangerous failure on 18 February 2026 due to a nearside front tyre with tread depth below the legal 1.6mm limit. This follows a pattern of recurring advisories regarding tyre wear and perishing observed in the 2025 test. The transition from a clean pass in 2024 to multiple failures and advisories in 2025 and 2026 suggests that the vehicle's consumables are being managed reactively, with components being run to the point of failure rather than being replaced during scheduled servicing. With a recorded mileage of 46,491 miles over approximately five years, the vehicle has covered an average of roughly 9,300 miles per year. This usage profile is consistent with typical UK driving patterns and does not indicate excessive mileage that would suggest premature drivetrain fatigue. However, the mileage is sufficient to warrant a close inspection of wear-and-tear items. While the usage is moderate, the recent MOT failures suggest that the owner may have been neglecting routine maintenance intervals, which can have wider implications for the longevity of other mechanical systems. A primary concern for a prospective buyer is the recurring issue with tyre condition. The advisories regarding cracking and perishing on the rear tyres, alongside previous failures for low tread depth, indicate that the rubber is likely reaching the end of its serviceable life due to age or environmental exposure. On a test drive, you should check the tyre sidewalls thoroughly for any signs of perishing or cracking and inspect the tread depth across the entire width of the tyre to ensure there is no uneven wear. Listen for any rhythmic thumping or vibration from the wheels, which could indicate incorrect wheel alignment or damaged tyre structures, and pay attention to any steering pull that might suggest worn suspension bushes or control arms. Additionally, the 2025 advisory regarding thin rear brake pads indicates that the braking system has been approaching the limit of its serviceability. You should check for any brake shudder during deceleration or a high-pitched squeal, which could signal worn pads or glazed discs. Given the apparent neglect of tyre maintenance, it is essential to verify the service book to ensure that other critical fluids, such as brake fluid and engine oil, have been changed according to the manufacturer's calendar-based intervals. A thorough check of the underside for any signs of fluid leaks or excessive corrosion on the exhaust and suspension components is also highly recommended to ensure overall structural integrity.